Within sediment coelobiont series, near Pt. Amour, Fox Cove, & L'Anse au Diable (Cambrian of Canada)

Where: Newfoundland and Labrador, Canada (53.3° N, 60.3° W: paleocoordinates 36.5° S, 71.0° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Bonnia-Olenellus trilobite zone, Forteau Formation, Dyeran (516.0 - 513.0 Ma)

• The formation encompasses two series: lower series - begins stratigraphically only a few meters above the top of the underlying Bradore Sandstone; upper - biostromal series with less pronounced ""reef"" characteristics that occur and seperated from lower series by about 20m of interbedded siltstones, shales and sandstones. AGE: Waucoban; refined by A. Hendy (6/2009) on the basis of biostratigraphic data (= Bonnia-Olenellus zone). Further refined to Dyeran (PJW).

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, burrowed, shelly/skeletal wackestone

• finely laminated biomicrite-sparite with some minor terrigenous admixture containing macrofossil sements/fragments, interlayed with cement.

Size classes: macrofossils, mesofossils

Preservation: original calcite, original silica

Collection methods: bulk,

• SOme of the skeletons may have been derived as washed-in material from the outside; they may be sheletons that were attatched by fleshy tissue,, but whose attatchments rotted and the skeletons fell to the sediment; they may have been soft-bodied with hard parts, and attatched within the cavities, but whose bodies rotted, thereby depositing the skeletal debris on the cavity floor (e.g. sponges and their spicules); or, of course, some of the skeletal debris may represent organisms which actually lived in the sediments.

Primary reference: D. R. Kobluk and N. P. James. 1979. Cavity-dwelling organisms in Lower Cambrian patch reefs from southern Labrador. Lethaia 12(3):193-218 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 9900: authorized by Mark Patzkowsky, entered by Phil Borkow on 30.01.2001, edited by Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

• It should be noted that for some organism groups, such as trilobite, only some of the genera are identified, mostly for biostratigraphical correlation. The ranking corresponds to the following: 1 - rare, 2 - common, 3 - abundant.
unclassified
  -
Serligia
  -
unclassified
  -
Fungi indet. Jahn and Jahn 1959
Porifera indet. Grant 1836
Archaeocyatha
  -
 Archaeocyathida - Dictyocyathidae
Retilamina sp. Debrenne and James 1981 archaeocyath sponge
 Archaeocyathida - Metacyathidae
Metaldetes profundus archaeocyath sponge
80-90% of archaecyaths
Metaldetes simpliporus archaeocyath sponge
 Archaeocyathida - Archaeosyconidae
Archaeosycon sp. archaeocyath sponge
 Archaeocyathida - Archaeocyathidae
Archaeocyathus sp. Billings 1861 archaeocyath sponge
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
this entry indicates additional trilobites who were not listed at the genus/species level.
 Redlichiida - Wanneriidae
"Wanneria logani" = Elliptocephala logani
"Wanneria logani" = Elliptocephala logani Walcott 1910 trilobite
 Redlichiida - Olenellidae
Olenellus thompsoni Hall 1859 trilobite
 Corynexochida - Dorypygidae
"Bonnia parvulus" = Bonnia parvula, Bonnia columbensis
"Bonnia parvulus" = Bonnia parvula Billings 1861 trilobite
Bonnia columbensis Resser 1936 trilobite
  - Antagmidae
Antagmus sp. Resser 1936 trilobite
multiple species of Antagmus
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Obolellata
 Obolellida - Obolellidae
Obolella sp. Billings 1861
both coelobiontic and washed in deposits.
Renalcis
  - Chabakoviacea
Renalcis indet. Vologdin 1932
 Ichnofossils -
Torrowangea sp. Webby 1970
trace fossil
Planolites sp. Nicholson 1873
trace fossil